Pinpoint Test Dg: Knock Sensor (KS): Introduction

WARNING: This page does not describe the selected car, but rather 31 other vehicles, including the 2018 Lincoln Navigator, 2018 Lincoln MKZ, 2018 Lincoln MKX, 2018 Lincoln MKT, and 2018 Lincoln MKC. However, it is still accessible from the selected car via links, so may be relevant.

This pinpoint test is intended to diagnose the following:

knock sensor bank 1, sensor 1 (KS11), knock sensor bank 1, sensor 2 (KS12), knock sensor bank 2, sensor 1 (KS21) and knock sensor bank 2, sensor 2 (KS22) (12A699)
harness circuits: KS11, KS11RTN, KS12, KS12RTN, KS21, KS21RTN, KS22, and KS22RTN
PCM (12A650)

Fig 1: Knock Sensor Bank 1, Sensor 1 (KS11) Connector (1 Of 2)

Courtesy of FORD MOTOR CO.

Fig 2: Knock Sensor Bank 1, Sensor 1 (KS11) Connector (2 Of 2)

Courtesy of FORD MOTOR CO.

Vehicle	Connector	Pin	Circuit
Continental 2.7L, Continental 3.0L	A	5 2	KS11RTN KS11
Continental 3.7L, Edge 3.5L, Expedition, Explorer GTDI 3.5L, Explorer 3.7L, F-150 3.3L, F-150 3.5L, Flex, MKT 3.5L, MKT 3.7L, MKX 3.7L, Navigator, Taurus GTDI 3.5L, Taurus 3.7L, Transit	B	2 1	KS11RTN KS11
E-Series, F-Series Super Duty 6.2L	C	2 1	KS11RTN KS11
EcoSport 1.0L	D	1 2	KS11RTN KS11
EcoSport 1.5L	E	1 2	KS11RTN KS11
Edge 2.7L, F-150 2.7L, F-650/F-750, F-Series Super Duty 6.8L, Fusion 2.7L, MKX 2.7L, MKZ 3.0L, Motorhome/Stripped Chassis/Step Van, Mustang 5.2L	F	2 1	KS11RTN KS11
Escape/Kuga 1.5L, Fiesta GTDI 1.6L, Fusion 1.5L, KA	G	2 1	KS11RTN KS11
F-150 5.0L, Mustang 5.0L	H	2 1	KS11RTN KS11
Fiesta 1.0L, Focus 1.0L	D	2 1	KS11RTN KS11
Ford GT	F	1 2	KS11RTN KS11
All other vehicles	I	1 2	KS11RTN KS11

Fig 3: Knock Sensor Bank 1, Sensor 2 (KS12) Connector

Courtesy of FORD MOTOR CO.

Vehicle	Connector	Pin	Circuit
Continental 2.0L, EcoSport 2.0L, Edge 2.0L, Escape/Kuga 2.0L, Explorer 2.3L, Focus, Fusion 2.0L, MKC, MKT 2.0L, MKX 2.0L, MKZ 2.0L, Mustang 2.3L, Taurus 2.0L	A	1 2	KS12RTN KS12
Escape/Kuga 1.5L	B	1 2	KS12RTN KS12
F-150 5.0L, Mustang 5.0L	C	2 1	KS12RTN KS12
Fiesta 1.6L, Fusion 1.5L, KA 1.5L	B	2 1	KS12RTN KS12

Fig 4: Knock Sensor Bank 2, Sensor 1 (KS21) Connector

Courtesy of FORD MOTOR CO.

Vehicle	Connector	Pin	Circuit
Continental 2.7L, Continental 3.0L	A	6 3	KS21RTN KS21
E-Series, F-Series Super Duty 6.2L	B	2 1	KS21RTN KS21
Edge 2.7L, F-150 2.7L, F-650/F-750, F-Series Super Duty 6.8L, Fusion, MKX 2.7L, MKZ, Motorhome/Stripped Chassis/Step Van, Mustang 5.2L	C	2 1	KS21RTN KS21
F-150 5.0L, Mustang 5.0L	D	2 1	KS21RTN KS21
Ford GT	C	1 2	KS21RTN KS21
All other vehicles	E	4 3	KS21RTN KS21

Fig 5: Knock Sensor Bank 2, Sensor 2 (KS22) Connector

Courtesy of FORD MOTOR CO.

Pin	Circuit
2	KS22RTN (Knock Sensor Bank 2, Sensor 2, Signal Return)
1	KS22 (Knock Sensor Bank 2, Sensor 2)

Powertrain Control Module (PCM) Connector

For PCM connector views or reference values, refer to REFERENCE VALUES .

Vehicle	Connector	Pin	Circuit
Continental 2.0L, EcoSport 2.0L, Edge 2.0L, Escape/Kuga 2.0L, Explorer 2.3L, Focus GTDI 2.0L, Focus 2.3L, Fusion 1.5L, Fusion 2.0L, MKC, MKT 2.0L, MKX 2.0L, MKZ 2.0L, Taurus 2.0L	198 PIN	E51 E50 E66 E65	KS12RTN KS12 KS11RTN KS11
Continental 2.7L, Continental 3.0L, Edge 2.7L, Explorer GTDI 3.5L, Flex GTDI 3.5L, Ford GT, Fusion 2.7L, MKT 3.5L, MKX 2.7L, MKZ 3.0L, Taurus GTDI 3.5L, Transit 3.5L	198 PIN	E51 E50 E66 E65	KS21RTN KS21 KS11RTN KS11
EcoSport 1.0L Automatic Transmission, Focus 1.0L	198 PIN	E66 E65	KS11RTN KS11
EcoSport 1.0L Manual Transmission, Fiesta 1.0L	198 PIN	E60 E59	KS11RTN KS11
EcoSport 1.5L Automatic Transmission, Escape/Kuga 2.5L, Fusion 2.5L, Transit Connect	198 PIN	E57 E58	KS11RTN KS11
EcoSport 1.5L Manual Transmission	112 PIN	E43 E31	KS11 KS11RTN
Escape/Kuga 1.5L	198 PIN	E36 E50 E24 E25	KS12RTN KS12 KS11RTN KS11
Expedition, F-150 3.5L, Navigator	198 PIN	E9 E8 E67 E68	KS21RTN KS21 KS11RTN KS11
F-150 2.7L, F-150 3.3L	306 PIN	E72 E51 E9 E30	KS21RTN KS21 KS11RTN KS11
F-150 5.0L, Mustang 5.0L	306 PIN	E79 E58 E72 E51 E74 E53 E9 E30	KS22RTN KS22 KS21RTN KS21 KS12RTN KS12 KS11RTN KS11
Fiesta GTDI 1.6L	198 PIN	E58 E57 E60 E59	KS12RTN KS12 KS11RTN KS11
Fiesta TiVCT 1.6L	128 PIN	T28 T20 T25 T17	KS12RTN KS12 KS11RTN KS11
Focus GDI 2.0L	154 PIN	E61 E85 E60 E84	KS12RTN KS12 KS11RTN KS11
KA 1.0L	128 PIN	E30 E18	KS11RTN KS11
KA 1.5L	128 PIN	E25 E13 E30 E18	KS12RTN KS12 KS11RTN KS11
Mustang 2.3L	198 PIN	E43 E42 E12 E11	KS12RTN KS12 KS11RTN KS11
Ranger	128 PIN	T25 T17	KS11RTN KS11
All other vehicles	198 PIN	E67 E68 E52 E53	KS21RTN KS21 KS11RTN KS11